CN106468382A

CN106468382A - There is the circular knit of annular fold

Info

Publication number: CN106468382A
Application number: CN201610682061.XA
Authority: CN
Inventors: G·D·拉格纳
Original assignee: Ragnar Technology Co
Current assignee: Ragnar Technology Co; Ragner Tech Corp
Priority date: 2015-08-20
Filing date: 2016-08-17
Publication date: 2017-03-01
Anticipated expiration: 2036-08-17
Also published as: JP2017053484A; AU2016210597A1; AU2016210597B2; CA2937724C; MX366851B; EP3133328B1; KR20170022885A; CA2937724A1; CN106468382B; DE102016010059A1; EP3133328A1; JP6851748B2; MX2016010865A

Abstract

The present invention relates to a kind of circular knit having annular fold.Specifically, the various aspects of present disclosure can be used for implementing a kind of braiding cover, and it includes being woven to the multiple left-handed fiber of hollow fabric pipe and the fiber of multiple dextrorotation.This braiding cover can be formed multiple annular ridge when being compressed to reduction length from spread length along its longitudinal length and annular is recessed.

Description

There is the circular knit of annular fold

Cross-Reference to Related Applications

The application is the U.S. of entitled " the Retractable Elastic Bungee Hose " of August in 2014 submission on the 8th Patent application 14/455,461 part continuation case, and require its priority, this U.S. Patent application is August 10 in 2013 in itself Day submit to the U.S. Provisional Patent Application 61/864,555 of entitled " Retractable Elastic Bungee Hose " non- Provisional application, and require its priority.Present specification also requires the entitled " Pleating of on October 29th, 2014 submission The U.S. Provisional Patent Application 62/069,831 of Machine for Braided Covers " and on November 11st, 2014 submit to The U.S. Provisional Patent Application 62/207,358 of entitled " Pleating Machine for Braided Tubes " preferential Power.The all of disclosure of these files is integrally incorporated in this with way of reference.

Technical field

The technology disclosing can be used for implementing hollow braiding cover, more specifically, can be used for implementing when by extending longitudinally power Longitudinal extension and the hollow braiding longitudinally retracted when by longitudinal withdrawal force are covered.

Background technology

The present situation in the field of linearly extensible and retractible flexible pipe includes spring biasing flexible pipe and elastic biasing flexible pipe. The design seeing the prior art of United States Patent (USP) No.8,291,941 and No.8,479,776 includes having interior elastic tube and no bullet Two connector ends of property outer housing.Outer housing and interior elastic tube one end connect to inlet outlet connector (source connector), and the other end connects To Outlet connector.Nonelastic outer housing is not generally attached with interior elastic tube between two connector ends, does not combine, not admittedly Fixed.Outer housing includes nylon, polyester or the polypropylene weaving or weaving and/or the material of other braidings or weaving.Braiding or spin The outer housing knitted is designed to not expand on radially or longitudinally, thus the physical length of outer housing and width determine flexible pipe and expand at it Greatest length under the state of opening and Breadth Maximum.Thus, this final lengths of nonelastic outer housing and diameter be exactly extensible and Transport when retractable hose is in its expanded state and in a state of use or final diameter during transmission fluid and finally long Degree.These elastic hoses of the prior art also have the cover all maintaining like wall thickness under extended position and retracted position.This It is meant that outer housing must fold when flexible pipe is retracted.

Content of the invention

The technology disclosing can be used for producing the circular knit of annular fold it is allowed to currently may be used compared to the braiding cover of standard The much bigger stretching, extension ratio of row.This is because the annular fold on braiding cover makes braided fabric be able to the tighter of longitudinal compression Close.The circular knit of the annular corrugations disclosing can be used for enforcement divergence ratio and exceeds well over 6 to 1 stretch cord and certainly stretch soft Pipe.The technology disclosing may be additionally used for implementing elastic extensible and retractable hose (elastic force flexible pipe) and stretch cord, and it may include The outer housing of the picture stretch cord of fold, with provide bigger stretching, extension ratio, more preferable environment anti-wear performance (i.e. the friction with ground) and/ Or the lower stress between interior elastic tube and outer housing.Unlike limiting the prior art of greatest length and Breadth Maximum (diameter) Outer housing, the outer housing of disclosure in (longitudinal) stretching, extension of length direction and can shrink, and also in width (radially) expansion and can shrink.

The elastic regracting disclosing and extensible pressure hose are also referred to as the " pressure that can flexibly stretch in this document Flexible pipe ", " resilientiy stretchable flexible pipe ", " Telescopic flexible pipe ", " elastic elastic force flexible pipe ", " elastic force flexible pipe " and possible other are similar Term.These elastic force hose design can be implemented with outer housing, and outer housing has the visibly different property of outer housing and knot compared with technology Structure.Such as outer housing can be braiding, knitting, weaving and/or winding, thus outer housing radially can become when longitudinally retracting Wide and when longitudinally elongated radial contraction.This means outer housing can both not clearly restrictions greatest length, also not bright The fixed maximum gauge of fidelity (width).Outer housing seen in Fig. 2A-B includes braided fabric pipe, and it is (for example, high that it may include fiber Strength, such as nylon fiber, polyester fiber, polypropylene, cotton, the combination of different fiber, etc.) or the yarn made of fiber Line.The length and width of such outer housing can be by from inside hose and the outside tension force putting on Telescopic flexible pipe and pressure Power determines.Therefore, the length of the Telescopic flexible pipe of disclosure and diameter can tension force according to outside user puts on flexible pipe and Put on the change in fluid pressure of inside hose.Therefore, although the Telescopic flexible pipe of prior art may spread to predetermined Greatest length and/or Breadth Maximum, outer housing be designed to stretchable during use, even and if may be adapted to reach apparent Only significantly stretched by Fluid pressure after long length.

Outer housing can have the similar structure of braiding cover on stretch cord or shock cord with now common prior art.Outward Cover and stretch cord cover can be with their interior flexible core (its can be, such as elastic tube or one group of one or more elastic threads) Stretch and retract, and the notable motion between the notable folding without outer cover material and expansion, or elastic inner core and outer housing.But Be, for obtain flexible pipe disclosed here outstanding divergence ratio, available outer housing controlled pleating.Therefore, outer housing can be designed Be retract when along its folded lengthwise and boil down to uniform intervals, adjoining dimensions annular ridge (fold).Compared to logical Often become the telescopic elastic flexible pipe of the arbitrarily prior art of chaotic folding fabric along its folded lengthwise, this is provided that retracted position The improved outward appearance of lower resilientiy stretchable flexible pipe.Similar to stretch cord, outer housing is designed to longitudinally retract with it and increases diameter And thickness, to provide seamlessly transitting between spread length and retraction length.Result is exactly that outer housing as disclosed herein can be complete There is provided substantially flat smooth outside for Telescopic flexible pipe when full reduced time, and make people full for stretch cord offer exquisiteness and aesthetic The outward appearance of meaning.

The outer ridge of cover also can be coated with high-abrasive material to form wear ring.This can provide more robust appearance for cover Face, and also help cover consistently to recover to the retraction shape of its fold.Outer housing also can have can with cover retract thickening, with cover Stretch (extending longitudinally) thinning wall thickness in length direction.These properties (in the presence of them) of outer housing can make collapsible soft Pipe all has the sensation of stretch cord in stretching, extension and retraction, and provides other benefits, such as more preferable aesthetic appearance, more when retracting Big stretching, extension retraction length ratio and improved using the yarn of higher Denier Neil outer housing wearability ability.Outer housing also can quilt It is embodied as that there is the ability moving with interior elastic tube and expanding, this can reduce the abrasion on the outer surface of elastic tube, thus carrying The service life of high flexible pipe.

Objects and advantages

Thus, each embodiment some advantages obtainable and some purposes reaching using the technology disclosing are：

Elastic tube in protection

A) provide a kind of resilientiy stretchable pressure hose (elastic force flexible pipe), it include weaving, knitting, weaving and/ Or the reinforcement outer housing of winding, outer housing can stretch with interior elastic tube and retract, thus in reducing elastic tube and reinforcement outer housing it Between friction and wear.

B) provide a kind of resilientiy stretchable pressure hose, it includes hollow braiding and strengthens outer housing, and outer housing can be with interior elastic tube Stretch together and retract, thus the friction and wear between elastic tube and reinforcement outer housing in reducing.

C) provide a kind of resilientiy stretchable pressure hose, it include weaving, knitting, weaving and/or winding plus Strong outer housing, outer housing can stretch with interior elastic tube and retract to reduce interior elastic tube and to strengthen the friction between outer housing and mill Damage, kollag puts on the outer surface strengthening outer housing inside and/or interior elastic tube.

D) provide a kind of resilientiy stretchable pressure hose, it includes hollow braiding outer housing, and outer housing can be with interior elastic tube Stretch and retract, thus the friction and wear between elastic tube and reinforcement outer housing in reducing, it is outer that kollag puts on reinforcement Cover inside and/or the outer surface of interior elastic tube.

E) provide a kind of resilientiy stretchable pressure hose, it include weaving, knitting, weaving and/or winding plus Strong outer housing, outer housing can stretch with interior elastic tube and retract to reduce interior elastic tube and to strengthen the friction between outer housing and mill Damage, lubricant puts on the outer surface strengthening outer housing inside and/or interior elastic tube.

F) provide a kind of resilientiy stretchable pressure hose, it includes hollow braiding outer housing, and outer housing can be with interior elastic tube Stretch and retract, thus elastic tube and the friction and wear strengthening between outer housing in reducing, it is outer that flexible pipe also includes putting on reinforcement The kollag of the outer surface of cover inside and/or interior elastic tube.

G) provide a kind of resilientiy stretchable pressure hose, it includes hollow braiding outer housing, and outer housing can be with interior elastic tube Stretch and retract, thus elastic tube and the friction and wear strengthening between outer housing in reducing, flexible pipe also includes putting in outer housing The fluid lubricant of the outer surface of portion and/or interior elastic tube.

H) provide a kind of resilientiy stretchable pressure hose, it include weaving, knitting, weaving and/or winding plus Strong outer housing and interior elastic tube, the structure of wherein outer housing makes it be able to interior elastic tube extending longitudinally and contraction.

I) provide a kind of resilientiy stretchable pressure hose, it include weaving, knitting, weaving and/or winding plus Strong outer housing and interior elastic tube, the wherein structure of the outer housing diameter in longitudinal compression increases and diameter reduces in extending longitudinally, by This outer housing can stretch together with interior elastic tube and retract thus in reducing elastic tube and strengthen outer housing between friction and wear.

J) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, the wherein structure of outer housing So that it is able to interior elastic tube extending longitudinally and contraction, wherein scalable pressure hose defines multiple frictions and/or ties Chalaza, interior elastic tube is bound to the inner surface of outer housing so that interior elastic tube consolidates and draws the local excessive of interior elastic tube by it Stretch and rupture is minimized.

K) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, and interior elastic tube has Multiple projections (annular projection, lump etc.), for making interior elastic tube consolidate to prevent interior elastic tube local mistake in reinforcement cover Degree stretching and rupture, the structure of wherein outer housing makes it be able to interior elastic tube extending longitudinally and contraction.

L) a kind of resilientiy stretchable pressure hose of offer, it includes strengthening cover and interior elastic tube, interior elastic tube and reinforcement cover Between there are multiple annular joint portions, for strengthening making interior elastic tube consolidate to prevent the stretching of interior elastic tube local excessive in cover And rupture, the structure of wherein outer housing makes it be able to interior elastic tube extending longitudinally and contraction.

M) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, the wherein structure of outer housing So that it is able to interior elastic tube extending longitudinally and contraction, wherein when flexible pipe is collapsed interior elastic tube have with outer housing naturally in The essentially identical natural external diameter in footpath, and when flexible pipe is retracted, interior elastic tube provides support for outer housing, thus outer housing is retracted as light Sliding outer surface (only seldom folding in casing fabric).

N) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, the wherein structure of outer housing It is made to be able to interior elastic tube extending longitudinally and contraction, wherein interior elastic tube has the length with outer housing when flexible pipe longitudinal compression The natural length of degree coupling, thus outer housing is collapsed for smooth outer surface, and the fiber constituting outer housing is longitudinally closely stacked, And interior elastic tube provides for outer housing and supports wherein when flexible pipe is retracted, but different outer housings mutually constrain when retracting.

In conjunction with elastic tube

O) provide a kind of resilientiy stretchable pressure hose (elastic force flexible pipe), it includes tubulose and strengthens outer housing and interior elastic tube (interior elastic hose), wherein interior elastic tube provide retraction bias so that scalable pressure hose is retracted, wherein interior elastic tube and Cover on multiple detached regions outside strengthening to combine to control the longitudinal direction strengthening outer housing when linear retractable pressure hose is retracted Collapse and fold, the structure of wherein outer housing makes it be able to interior elastic tube extending longitudinally and contraction.

P) provide a kind of resilientiy stretchable pressure hose, it includes tubulose and strengthens outer housing and interior elastic tube, wherein interior elasticity Pipe provides retraction bias so that scalable pressure hose is retracted, and the structure of wherein outer housing makes it be able to interior elastic tube longitudinally Stretch and shrink, wherein interior elastic tube and reinforcement outer housing are combined using the ring-type joint portions of multiple annulars, off and in order to online Property scalable pressure hose retraction when longitudinally controlled strengthen collapsing and folding of outer housing, and wherein can be in multiple annular ring-types To strengthening applying optional lubricant on the inner surface of outer housing and/or the outer surface of interior elastic tube between joint portion, to reduce two Friction between individual surface.

Q) provide a kind of resilientiy stretchable pressure hose, it includes the reinforcement outer housing around interior elastic tube, wherein outer housing Structure makes it be able to interior elastic tube extending longitudinally and contraction, and wherein interior elastic tube provides retraction bias so that scalable soft Pipe retract, wherein interior elastic tube using the multiple little combination place on its surface or point be attached to reinforcement outer housing within, in order to Control during linear retractable pressure hose retraction and strengthen the longitudinally collapsed of outer housing and fold, and wherein can be in the plurality of brief summary Close and apply optional lubricant to the outer surface of the inner surface strengthening outer housing and/or interior elastic tube between place or point, to reduce Friction between two surfaces.

R) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, and wherein interior elastic tube is Roughly cylindrical pipe simultaneously provides retraction bias so that Telescopic flexible pipe retraction, the structure of wherein outer housing make its be able to Interior elastic tube extending longitudinally and contraction, wherein interior elastic tube is bound to the inside strengthening outer housing off and on, in order to linearly can stretch Control during compression pressure flexible pipe retraction and strengthen the longitudinally collapsed of outer housing and fold, and wherein can be to reinforcement between interval joint portion Optional lubricant is applied on the outer surface of the inner surface of outer housing and/or interior elastic tube, to reduce the friction between two surfaces.

S) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, the wherein structure of outer housing It is made to be able to interior elastic tube extending longitudinally and contraction, wherein interior elastic tube has multiple projections (for example on its outer surface Ridge, lump etc.) and provide retraction bias so that Telescopic flexible pipe retraction, wherein when flexible pipe is collapsed, interior elastic tube has The natural external diameter essentially identical with the natural internal diameter of outer housing, wherein when flexible pipe bounces back interior elastic tube for outer housing provide support so that Obtain outer housing to bounce back as smooth outer surface (only a small amount of folding that misplace or deformity in casing fabric).

T) provide a kind of resilientiy stretchable pressure hose, it includes strengthening outer housing and interior elastic tube, the wherein structure of outer housing It is made to be able to interior elastic tube extending longitudinally and contraction, wherein interior elastic tube has multiple projections (for example on its outer surface Ridge, lump etc.) and provide retraction bias so that Telescopic flexible pipe bounces back, interior elasticity pipe wherein when being slightly compressed longitudinally There is the natural length with the length coupling of outer housing, thus outer housing is collapsed for smooth outer surface and constituted the fiber of outer housing longitudinally tightly Stack with against, wherein when flexible pipe bounces back interior elastic tube for outer housing provide support but not retraction when with outer housing mutually about Bundle.

U) provide as project e) to the resilientiy stretchable pressure hose as described in t), wherein such as paraffin, politef painting The kollag of layer and/or other solid polymer coatings is used between interior elastic tube and outer housing.

V) provide if project e) is to the resilientiy stretchable pressure hose as described in t), wherein such as natural oil, artificial oil, gel Or the fluid lubricant of other oil-based liquids is used between interior elastic tube and outer housing.

W) provide if project e) is to the resilientiy stretchable pressure hose as described in t), the profit between wherein interior elastic tube and outer housing Lubrication prescription scratches (chaffing) and abrasion on elastic tube outer surface in reducing.

X) provide a kind of resilientiy stretchable pressure hose, it has retraction length and provides to outside flexible pipe depending on user The large-scale spread length of the tension force on surface.

The circular knit of fold

Y) provide a kind of hollow or circular braided tube, it has the annular fold of the longitudinal length formation along braided tube.

Z) provide a kind of hollow or circular braided tube, it can form annular along its length when foreshortening to punctured position Fold.

Aa) provide a kind of hollow or circular braided tube with annular fold, annular fold is by thermal finalization to for shape Become in the yarn of braided tube.

Bb) provide a kind of hollow or circular braided tube with annular fold, annular fold is by thermal finalization to for shape Become in the yarn of braided tube, wherein thermal finalization includes melting the outer annular ridge of fold.

Cc) provide a kind of hollow or circular braided tube with annular fold, annular fold is by thermal finalization to for shape Become in the yarn of braided tube, wherein thermal finalization includes cyclopolymer is bound to the outer annular ridge of annular fold.

Brief description

Figure 1A is the resilientiy stretchable flexible pipe input (Bibcock connector end) of prior art.

Figure 1B is the resilientiy stretchable flexible pipe outfan (nozzle connector end) of prior art.

Fig. 2A is the resilientiy stretchable stretching flexible pipe with telescopic braiding outer housing (retraction).

Fig. 2 B is the resilientiy stretchable stretching flexible pipe with telescopic braiding outer housing (expansion).

Fig. 2 C is the resilientiy stretchable stretching flexible pipe with double telescopic braidings outer housing (expansion).

Fig. 3 A is the resilientiy stretchable stretching flexible pipe with multiple wear rings, the round pleat that multiple wear rings are formed when retracting Ridge at braiding outer housing be combined.

Fig. 3 B is the resilientiy stretchable stretching flexible pipe with the wear ring being bound to braiding outer housing (expansion).

Fig. 4 A is elastic stretch cord, and it includes the braiding cover wrinkling around interior elastic tube.

Fig. 4 B is elastic stretch cord, and it includes the braiding cover wrinkling and solid interior elastic threads.

Fig. 5 A is elastic force flexible pipe 30, and it has the outer housing 36 wrinkling of thermal finalization.

Fig. 5 B is elastic force flexible pipe 30, and it has the outer housing 36 wrinkling with melt portions 77 thermal finalization.

The definition of term

It is fully retracted that length or retraction length-it is it should be understood that for elastic force flexible pipe (Telescopic flexible pipe) and along its length The assembly (for example, outer housing 36, interior elastic tube 34, etc.) of degree arrangement, when flexible pipe or these assemblies are fully retracted (that is, when Essentially without Fluid pressure and when elastic force flexible pipe outer amount of tension itself is minimum in its elastic tube), their length.

Spread length-itself it should be understood that for Telescopic flexible pipe and the assembly arranged along its length, when flexible pipe is flowed Body pressurizes and does not stretch when being applied to flexible pipe in addition to Fluid pressure, the length that flexible pipe or the stretching, extension of these assemblies reach.

Full extension length-itself it should be understood that for Telescopic flexible pipe and the assembly arranged along its length, when (1) makes Flexible pipe be stretched to its maximum tension length (defined below) external pressure be removed and (2) ambient pressure and flexible pipe in stream When the difference of body pressure be enough to hose expansion to its spread length, the length that flexible pipe or component recovery arrive.Generally, due to flexible pipe The prevention that applies of assembly be fully returned to the resistance of spread length, the full extension length of given flexible pipe or assembly is more than phase Spread length with flexible pipe or assembly.The difference largely base of the spread length of any specific flexible pipe and full extension length Friction between the assembly of composition flexible pipe.For the flexible pipe of lubrication, full extension length may only ratio spread length long hundred / several, but for unlubricated flexible pipe, full extension length may be longer up to 1 15 (or more) than spread length.

Maximum tension length-itself it should be understood that for Telescopic flexible pipe and the assembly arranged along its length, when flexible pipe reaches During the approximate greatest length being safely stretched to it, the length of flexible pipe (or assembly).In most of the cases, maximum tension Length well beyond elastic force flexible pipe full extension length (for example, maximum tension length may beyond spread length reach 25% or More, and full extension length is mostly just longer 10-15% than spread length).For example, in up-to-date elastic force flexible pipe prototype, Prototype elastic force flexible pipe has 4 feet of the length being fully retracted length, being increased to about 12 feet in the presence of only hydraulic pressure (its spread length).After user draws one end of prototype flexible pipe and discharges, prototype elastic force flexible pipe will keep being slightly larger than 13 feet Length (its full extension length).But, user and then one end of elastic force flexible pipe can be held and with about 200 newton (45 Pound) power (tension force) be stretched to 20 feet.Although the fracture strength of the outer housing of prototype flexible pipe is more than 2000 newton (about 500 Pound) and bigger power can be applied in elongate flexible pipe further a bit, but because bigger tension force may lead to flexible pipe to apply Retraction force, and retraction force may high to being dangerous for user, thus this to be considered its maximum tension long Degree.But, apply only can increase slightly the length of flexible pipe further beyond the tension force of 200 newton, thus this be to produce maximum to draw The rational power of elongation.

Helical angle-itself it should be understood that the longitudinal axis of fiber that comprise of outer housing and this outer housing horizontal (laterally in figure Be shown as above-below direction in 2A-C) between angle.Laterally also may be defined as, perpendicular to the direction of the longitudinal axis of flexible pipe.In flexible pipe Outer housing be folded into crimp shape in the case of, when flexible pipe is in its retraction length, can by along single fiber from one Ridge to next ridge and finds these ridge to obtain helical angle around the angle of flexible pipe inscribe.

Specific embodiment

It is seen that the perspective of the scalable stretching flexible pipe 20 (scalable pressure hose) of prior art is cut in Figure 1A-B Face figure.Figure 1A illustrates the flexible pipe 20 of relaxed state (decompression), and Figure 1B illustrates to be in the flexible pipe 20 of pressurized operation state.Scalable Flexible pipe 20 includes interior elastic hose 24 (interior elastic tube), outer housing 26, inlet outlet connector 22 and Outlet connector 28 are strengthened in weaving.Enter Mouth adapter 22 attaches to one end of interior elastic tube 24 and outer housing 26, and Outlet connector 28 connects to interior elastic tube 24 and outer housing 26 The other end.Interior elastic tube 24 and outer housing 26 are only attached (fixation) at adapter, and relative to each other in adapter 22 He Between 28 longitudinally slidably.Inlet outlet connector 22 is designed as being attached to the house faucet of standard.Outlet connector 28 designs For connecting to spreader nozzle or other garden hose nozzles, nozzle is soft to expand to increase the pressure in flexible pipe as current-limiting apparatus Pipe.Outlet connector 28 also includes the current limliting ridge 29 of its own and helps the intrinsic pressure of dilatational elasticity pipe 24 to increase.Work as hydraulic pressure It is released, the pressure in Telescopic flexible pipe 20 can recover to atmospheric pressure, and flexible pipe 20 is returned to by the elastic property of elastic tube 24 Retracted mode shown in Figure 1A.

In Figure 1A-B, outer housing 26 includes tubular reinforcements, and it is made up of the high strength fibre weaved, and is designed as having Default length and width (diameter), and it is supported on the operating pressure of conduction in interior elastic tube 24.Outer housing 26 includes relative thin Textile fabric wall, thus outer housing 26 can fold and crumple is to shorter length during retracting.When crumple is to the retraction of flexible pipe 20 During length, outer housing 26 keeps essentially identical wall thickness.Outlet connector 28 includes current limliting ridge 29 with elastic tube 24 Pressure is produced in portion's passage 25.Interior elastic tube 24 extends through reinforcement outer housing 26, and the natural length of interior elastic tube 24 is about to spin Knit outer housing 26 natural length 1/3rd.Interior elastic tube 24 has nature outer diameter D 1 (unstressed), strengthens outer housing 26 and has Natural internal diameter D2 (non-crumple).The outer diameter D 1 of elastic tube 24 is about the half of the internal diameter D2 of outer housing 26.The diameter difference of D1 and D2 Allow the notable extending longitudinally of Telescopic flexible pipe 20 before elastic tube 24 is forced upwardly the inner surface of extruding outer housing 26.This helps protect The outer housing overextension that in shield, elastic tube is not expanded when pressurized.Interior elastic tube 24 and outer housing 26 are cylinder, work as elastic tube 24 by liquid and/or gas from internal pressurization when, elastic tube 24 is forced against outer housing 26 and expands on radially and longitudinally.At this Extended position, as shown in fig. 1b, outer housing 26 has internal diameter D2 and outer diameter D 3.In the resilientiy stretchable flexible pipe of prior art, The thickness of outer housing 26 determines the difference between diameter D2 and D3, provides more preferable wearability using thicker outer housing.When outer housing 26 When stretching and retracting, the thickness of outer housing 26 is substantially fixing, as seen in figure 1, outer housing 26 folded tube when it is retracted Shape outer housing 26.The resilientiy stretchable hose design of prior art be there is outer housing 26, outer housing 26 have with pressurized when flexible pipe Corresponding maximum gauge and fixing longitudinal length are (see existing in United States Patent (USP) No.8,291,941 and No.8,479,776 Technology).Therefore, when the resilientiy stretchable flexible pipe using the prior art similar to resilientiy stretchable flexible pipe 20, in inner tube 24 Interior pressure energy make outer housing 26 folding become direct join outer housing 26 is extended to its greatest length (full extension length) and makes its footpath To being expanded to its maximum gauge (smooth cylindrical outer surface), as seen in this fig. 1b.Once expanding completely and stretching, outer housing 26 quilt It is designed as that there is predetermined length and width (diameter).In order to provide this fixing maximum gauge and maximum for outer housing 26 Length, using the fabric cover weaved or weave, it has the longitudinal yarn extending longitudinally to the resilientiy stretchable flexible pipe of prior art Line is to provide greatest length for outer housing, and has the one or more radial direction yarns substantially aligned with the circumference of outer housing and think outer housing Maximum diameter is provided.

In Figures 2 A and 2 B it is seen that resilientiy stretchable flexible pipe 30 (elastic force flexible pipe), it includes inlet outlet connector 22, tool Have multiple annular ridge projections 33 (optional) interior elastic tube 34, stretchable strengthen outer housing 36, Outlet connector 28, lubricant 37 and for elastic tube 34 being bound to one or more coupling collars 38 (optional) of outer housing 36.Fig. 2A illustrates to be in The elastic force flexible pipe 30 of its relaxed state, and Fig. 2 B shows the elastic force flexible pipe 30 being in its pressurized state.Fig. 2A illustrates that elastic force is soft The entrance point of pipe 30, and Fig. 2 B shows the port of export of flexible pipe 30.Interior elastic tube 34 is inserted in hollow braiding outer housing 36.Import Adapter 22 is fixedly connected to interior elastic tube 34 and outer housing 36 relative two ends with Outlet connector 28.Inlet outlet connector 22 are designed as connecting to source of pressurised fluid or compressed gas source.Inlet outlet connector 22 is designed as transmitting fluid (liquid or gas) Inner passage 35 to elastic tube 34.Outlet connector 28 be designed as by fluid (liquid or gas) from inner passage 35 transmit to External nozzles or other equipment.Outlet connector 28 connects relative with inlet outlet connector 22 with outer housing 36 to interior elastic tube 34 One end, and it is designed as the junctional complex connecting to various nozzles or applicator.Outlet connector 28 is designed as guiding in elastic tube 34 Fluid or gas flowing through current limliting ridge 29 and flow out one end (see Fig. 2 B) of elastic force flexible pipe 30.Current limliting ridge 29 is helped Help and set up pressure in elastic tube 34 to stretch flexible pipe 30 in case using.

In Fig. 2A-B, annular ridge 33 (annular ring) can be part or the assembly of attachment of interior elastic tube 34. Coupling collar 38 is located at and combines, to provide outer housing along elastic tube 34 between elastic tube 34 and outer housing 36 and by this two assemblies Be uniformly distributed.This is uniformly distributed and helps prevent the high pressure spot in elastic tube 34 when flexible pipe 30 stretches because intrinsic pressure.Annular Ridge 33 and coupling collar 38 (viscosity ring) all may be logically divided into less fragment or point to provide same function (for example, to keep Outer housing 36 is in place, thus covering 36 have suitable distribution on elastic tube 34；By limiting the knot of outer housing 36 when flexible pipe 30 shrinks Conjunction is partially folded inwardly to make outer housing 36 with regular folded fashion；Cover on annular ring 33 or other projections by outside promoting Partly folded-out in structure is so that outer housing 36 is folded with regular fold style；Etc.).It is preferred that ridge 33 or ring 38 position off and on along the length of elastic force flexible pipe 30, wherein have every 2 feet or more when flexible pipe 30 is in its spread length A closely ring.In the enforcement of the presence ridge 33 disclosing and/or the technology of coupling collar 38, they can be by between more broadly Separate (that is, they are separated with the interval more than 2 feet when flexible pipe 30 is in its spread length), but this can weaken these combinations Ring maintains the effect of the position of outer housing 36.

In Fig. 2A-B, interior elastic tube 34 includes tubular body, and the multiple optional annular that tubular body has along its length is prominent Rise.There is no projection 33, elastic tube 34 can be similar to elastic tube 24 and 44.Elastic tube 34 can be by any many different elasticity materials with 44 Material is made, such as natural rubber, synthetic rubber, thermal finalization elastomer, resilient thermoplastic etc..Every in these elastomer classifications In one, all there may be many specific polymer and polymeric blends.It is preferred that may be selected elastic tube 34 outer diameter D 1 with Elastic tube 34 during elastic tube 34 retraction is made yarn 36a-b to be supported in the inside of outer housing 36 (for example, by than retraction with easing up When outer housing 36 desired internal diameter is more slightly smaller or approximately equal).That give pipe 34 space to slide in outer housing 36, still simultaneously Internal support so that the external energy of cover 36 has the cylinder form of relative smooth when pipe 34 bounces back can be provided for outer housing 36 (pleated for example, being made up of regular recessed and ridge).Projection 33 is the part of elastic tube 34 and includes annular ring, annular Independently elastic body projects radially outwardly ring.To adapt to projection 33, when flexible pipe 30 bounces back, this helps outer housing 36 energy slight deformation Outer housing is held in place by.Projection 33 may also include and substitutes the complete protruding point of ring or projection fragment.In the case of every kind of Projection can be transferred through the opposing outer housing 36 when flexible pipe 30 bounces back and do not use and shifts with respect to elastic tube 34, and helps reduce work Stress for interior elastic tube 34.It is this that be held in place by outer housing 36 with respect to interior elastic tube 34 also can be by using viscous The coupling collar 38 that pipe 34 and cover 36 combine is realized by mixture.

As it was previously stated, in Fig. 2A-B, projection 33 and coupling collar are all that the function of these assemblies alternatively, having described that can It is omitted, or these functions can include projection 33 or the mode of coupling collar 38 provides.For description it is contemplated that, replace Using projection 33 and/or coupling collar 38 (or in addition), outer housing can be manufactured such that by selecting elastic pipe diameter D1, retracting Danier (denier) self-regulation of outer housing diameter D3 and yarn 36a-b.For example, the danier of yarn 36a-b and outer housing 36 Diameter D3 can choose with respect to the diameter D1 of elastic hose, so that when flexible pipe 30 is retracted, outer housing 36 tends to forming stacking The file (annular ridge 36r and annular recessed 36v) of circular pleat, it has the interior table that pine adapts to around interior elastic tube 34 Face.This longitudinal compression of cover 36 will produce the power of little spring-like in the yarn 36a-b of compression, if user is by outer housing 36 removal appropriate locations, this power tends to so that outer housing 36 is evenly spaced apart on pipe 34.It is, in the outer housing 36 of compression Longitudinal force will tend to for outer housing 36 being moved back to appropriate location.The yarn 36a-b choosing more denier can allow the position of more compression Put, hence allowing to flexible pipe 30,40 and 50 has bigger expansion length and retraction length ratio.

In Fig. 2A-B, outer housing 36 may include high strength fibre and/or yarn 36a-b, it is braided, knitting, weaving and/ Or it is wound into tubular reinforcements, its sustainable pressure importing in inlet outlet connector 22 and interior elastic tube 34 or 44.In this example In son, yarn 36a and 36b on outer housing 36 weaves in the opposite direction, and yarn 36a is wound and yarn around cover 36 with left hand direction 36b is wound around cover 36 with right-hand lay.Yarn 36a-b winds around cover 36 while, they are by come in and go out among each other Mode is weaved (braiding), and to produce hollow braiding structure, due to the helical angle of yarn 36a-b, this hollow braiding structure can be Radially and longitudinally expand and shrink.The hollow nature of outer housing 36 makes it be able to receive to inside it elastic tube 34 and 44 to assemble Become elastic force flexible pipe.The braiding property of outer housing 36 can also make it be able to when retracting produce evenly spaced adjoining dimensions along its length Annular ridge 36r, as shown in Figure 2 A.This pressure texture can have close to tangential yarn, thus providing outer housing 36 to indulge Ability to stretching or expansion.

When elastic force flexible pipe 30 is in its retracted position, as shown in Figure 2 A, yarn 36a-b is with about 10 ° of low pitch angle P1 Tilt.Helical angle P1 can change according to the stretching, extension ratio that elastic force flexible pipe needs in the range of about 5 ° to 20 °.For elastic force flexible pipe 30, this helical angle P1 is about horizontal 10 ° with respect to flexible pipe 30.Therefore, when deployed, outer housing 36 is designed to, and works as yarn Line 36a-b tilts to during each bigger helical angle (see helical angle P2 in Fig. 2 B-C) and/or launches with outer housing 36 and longitudinal direction Stretch.The helical angle of this increase of yarn 36a-b means outer housing 36 in company with the vertical expansion of interior elastic tube 34.Due to open circles The tension force (hoop tension) of horizontal generation in its surface for the Fluid pressure in column tube (flexible pipe) twice its in longitudinal generation Tension force, the helical angle of the yarn helical angle about 30 ° (tan30 °=1/2) reaches balance.Therefore, when flexible pipe is only pressed within During stretching, the helical angle of yarn 36a-b may be parked in slightly smaller than 30 ° of angle (spread length).

(caused by for example, because being drawn by user), yarn when extra pulling force is added on elastic force flexible pipe 30,40 or 50 The helical angle of 36a-b rises to middle screw swing angle P2 and exceedes.Helical angle P2 be more than when elastic force flexible pipe 30,40 or 50 only interior (that is, when being stretched over its spread length) attainable about 30 ° helical angle during pressure stretching, but less than when such flexible pipe The angle that when being stretched over its maximum tension length, it is reached.Then, even if between yarn 36a-b and elastic tube 34 and yarn After friction between 36a-b itself leads to extra pulling force to be released (for example, user stops stake pipe), yarn 36a-b Also intermediate conveyor screw (that is, when extending to full extension length) can be maintained at.For example, prototype flexible pipe has adopted for outer housing 36 circular braided tube manufacture, braided tube is made up of the yarn of the helical angle when withdrawn with about 10 °.Using 10 ° of yarn Helical angle, prototype flexible pipe can be expanded to the full extension length being about three times in its retraction length.Its outer housing compresses (certainly further Horizontal helical angle is less) prototype be capable of do not having pulling force effect in the case of flexible pipe be more than its retraction length four Full extension length again.When user continuously draws (stretching) flexible pipe, these prototype flexible pipes are easily attained during use Five to six times of its retraction length.

Stretch with flexible pipe 30 (and flexible pipe 40 and 50), outer housing 36 tends to being changed into less diameter from larger diameter D3 D4.Diameter D4 can be significantly less than diameter D3, thus interior elastic tube 34 need not diametrically significantly be expanded when pressurized.Due to working as Yarn is straightened by yarn during longitudinal dilazep, and the angle of yarn 36a-b causes the shrink that this diameter occurs.With yarn 36a- The helical angle of b increases, and the diameter of outer housing 36 reduces.Using the Fluid pressure in elastic tube 34, elastic elastic force flexible pipe 30,40 and 50 One end can simply be held by user to be easy to stretch.The action meeting that this draws is further such that the diameter of outer housing 36 subtracts Little to below diameter D4.With reducing of outer housing diameter, interior elastic tube 34 also must reduce its diameter.Due to elastic tube 34 with The stretching, extension of elastic force flexible pipe and diameter diminishes, if compared with the situation about not diminishing with the diameter of outer housing 36 of the overall strain in elastic tube 34 more Little.Therefore, this kind of elastic force flexible pipe can be easily attained high divergence ratio and not rupture.Using the technology disclosing, a kind of bullet can be implemented Power flexible pipe, it just easily can stretch extra 30% compared to its full extension length simply by drawing.This can provide A kind of extraordinary stretchable sense, similar to stretch cord.

In outer housing 36, the danier for forming the yarn of outer housing affects longitudinal limited compression ratio, if because yarn The less yarn in section of line just can more easily overlie one another.It should be noted that when yarn 36a-b is compressed in the vertical, its Tend to diametrically expanding.During this radial dilatation, expand and contraction scope for specific, the radial thickness of outer housing 36 Can keep relatively constant.With yarn 36a-b angle closer to horizontal (less helical angle), yarn tends to outside it Portion limits larger diameter, and is slightly compressed longitudinally (retraction) yarn with cover 36 simultaneously and can limit less internal diameter.Set in prototype In meter, the external diameter of elastic tube in the internal diameter tight fit of outer housing.Reserve a small amount of space between interior elastic tube and the outer housing of fold, Outer housing is able on elastic tube slidably.This be arranged as prototype flexible pipe provide retract when orderly and smooth Outside.

Telescopic flexible pipe 30,40 knot similar with the suitable dimension that 50 can have same outer housing 36 and interior elastic tube 34 or 44 Structure.Using the just size of interior elastic tube 34 and outer housing 36, in conjunction with the gentle longitudinal compressing force (elastic tube 34 from elastic tube Length be selected as mate outer housing reduction length), then smooth outer surface, wherein elastic tube can be formed on outer housing 36 The inner surface of 34 outside gentle ground support housings 36 when retracting.Retracted position as shown in Figure 2 A is it has also been shown that outer housing 36 compressible one-tenth are spaced uniform and adjoining dimensions annular ridge 36r along its length.Diameter and length using pipe 34 and cover 36 Degree appropriately combined, Telescopic flexible pipe 30,40 and 50 can have smooth outside, its provide compared to prior art can The remarkable visual appearance of bellows.When longitudinally retracting, the knot of braiding, pin pin, weaving the and/or winding of outer housing 36 Structure tends to radial dilatation, and tends to radial contraction in outer housing extending longitudinally.

In fig. 2b, it can be seen that, outer housing 36 includes being woven to around a circular path turnover yarn each other 36a-b, strengthens cover 36 to form hollow braiding.Yarn 36a advances through outer housing 36 with left hand helix shape path, and yarn 36b Advance along right-handed helix shape path.In fig. 2, these single yarns are slightly compressed longitudinally, and lead to all yarns to have close Vertical angle (from 5-20 ° of vertical direction, helical angle).It is preferred that the volume in the embodiment following Fig. 2A, in outer housing 36 Weaving the yarn line 36a-b can form the evenly spaced ring of outer surface along scalable elastic force flexible pipe 30,40,50 when outer housing is retracted Shape ridge 36r.Yarn 36a-b is preferably made up of high-strength material, such as polypropylene, nylon, terylene, cotton etc..Yarn 36a-b may include multiply material or sub-thread silk.Multi-strand yarns can be twist yarn, zero twisted yarn, multiple multiply yarn etc..Yarn 36a-b May also include the line of Flat belt, textured belt and other various sections, etc..Different yarn types can produce for special-purpose , have of different nature difference outer housing.For example, yarn 36a-b may include the monofilament of thin square-section, or big danier Non-twist multifilament yarn.The two all can be woven to stretch cord pattern to manufacture outer housing 36.This makes the retraction flexible pipe shown in Fig. 2A There is neatly smooth outward appearance.

In the extended position shown in Fig. 2 B and 2C, outer housing 36 extending longitudinally is it is seen that the angle of single yarn is from laterally (vertically The longitudinal axis in flexible pipe) close to 45 °.Yarn winds in the two directions and weaves mutual turnover each other to provide stable tubulose to add Strong part, it longitudinally and radially expanding and can shrink.The construction of outer housing 36 can be significantly closer to that China refers to manage, wherein can be by handss Refer to insert each end of this toy, this toy of longitudinal compression radial dilatation, the finger of such user slides in pipe.When making When user attempts the finger pulling out them, the braiding structure of their stretching tubes makes it radially become tight on their finger.Here The elastic force flexible pipe disclosing can be implemented as operating in a similar manner, but elastic tube 34 and 44 more easily can change compared with the finger of people Variable diameters.Thus, elastic force flexible pipe 30,40 and 50 can respond tension force and the pressure on flexible pipe, to stretch in length and to shrink.

In Fig. 2A-B, lubricant 37 is coated on the inner surface of outer housing 36.Lubricant 37 can insert in elastic tube 34 and Adapter 22 or 28 connects to before its end the inside being coated on outer housing 36.Lubricant 37 can be injected by outer housing 36 and coat Elastic tube 34 and the inner surface of outer housing 36.Lubricant 37 is designed as reducing during flexible pipe 30 stretches and retracts when elastic tube is in cover Friction and wear on elastic tube 34 when sliding in 36.In period of assembly it should be noted that so that lubricant 37 is not scraped completely One end to scalable elastic force flexible pipe 30.The uniform coating of lubricant 37 preferably provides along the whole length of flexible pipe 30.Profit Lubrication prescription 37 can put on elastic tube 34 before assembly.Various solids and fluid lubricant can be used for reducing elastic tube 34 and outer housing Frictional force between 36.Due to the porous property of outer housing 36, the lubricant being placed on outer housing 36 period of assembly be not easy by Scrape or in Telescopic flexible pipe 30 internal shift.Many methods that other apply lubricant can be used for for lubricant being placed in elastic tube Between 34 and outer housing 36.The fibroids property of outer housing 36 tends to keeping lubricant to be not emitted in environment.

In fig. 2 c it is seen that resilientiy stretchable stretch flexible pipe 40 (elastic force flexible pipe) second example, it include into Mouthful adapter 22, stretchable outer housing 36, interior elastic tube 44, second is stretchable strengthen in cover, multiple optional coupling collar 48 and Outlet connector 28.Inlet outlet connector 22, outer housing 36 and Outlet connector 28 can with identical seen in elastic force flexible pipe 30, and hold Row identical operating function.But, elastic force flexible pipe 40 also include between elastic tube 44 and outer housing 36 second stretchable in Cover 46.Middle cover 46 can have with outer housing 36 essentially identical configuration and is made up of close thread material.In some designs, in Cover 46 can be made up thus providing the low-friction surface of softness of cotton, so that elastic tube 44 leans against thereon when expanding.If middle cover 46 It is made up of the yarn compared to the notable more Denier of outer housing 36, it can have shown more close weave pattern, and it can There is provided more smooth inner surface with contact resilient pipe 44.Outer housing 36, middle cover 46 and elastic tube 44 are inserted another with shape by one Become three layers of flexible pipe, and adapter 22 and 28 is bound to all of three in the entrance point of elastic force flexible pipe 40 and the port of export respectively Layer.

In fig. 2 c, middle cover 46 be plotted as having outer housing 36 approximately twice as yarn, and the relatively role of a young woman in traditional opera Buddhist nun because adopting Your yarn and can have the approximately half of radial thickness of outer housing 36.Yarn 36a-b in cover 36 and the yarn constituting cover 46 The helical angle of 46a-b can have essentially identical on all length (although having different angles in different length) of flexible pipe Helical angle, smoothed between retracted position and extended position and between extended position and retracted position to assist in ensuring that Cross.But, because middle cover 46 utilizes the yarn 46a-b (or fiber) of small diameter to can achieve bigger compression, therefore if desired, The less danier of the yarn 46a-b of middle cover 46 can have significantly less helical angle.Yarn 46a-b tool shown in Fig. 2 C There is about 30 ° of helical angle it means that yarn 46a-b is close to its full extension length, and the yarn 36a-b of outer housing 36 illustrates There is about 45 ° of helical angle it means that yarn 36a-b be stretched substantially exceed its equilibrium length (spread length, close 30 ° of helical angle).In alternate design, can be using many others of helical angle and yarn denier to strengthening cover 36 and 46 Combination, and may be used to provide the attribute of desired elastic force flexible pipe.

In fig. 2 c, the helical angle of the yarn 46a-b of middle cover 46 is about 30 °, and the spiral shell of the yarn 36a-b in outer housing 36 Swing angle is about 45 °.This spiral difference is it is meant that middle cover 46 just reaches the balance of radial tension and longitudinal tension force, and outer housing 36 This spread length will be resisted.Therefore, cover 36 and 46 may be wanted from the direction of internal fluid pressure change length with them Confront with each other.If however, the internal diameter of outer housing 36 covers 46 external diameter, radial force and longitudinal force in being slightly more than at length-specific Major part all will by middle cover 46 rather than outer housing 36 bear.Instead, outer housing 36 can loose ground static around middle cover 46 and be Middle cover 46 offer abrasion protection.This can make elastic force flexible pipe 40 had compared with indicated by the helical angle on outer housing 36 substantially more Long full extension length.Middle cover 46 may spread to its spread length (about 30 ° of yarn spirals angle), and outer housing 36 is stretched To equal length.Radial force due to only having very little is applied on outer housing 36, thus the extending longitudinally by the generation of middle cover 46 Outer housing 36 is stretched, and its yarn 36a-b is pushed over its about 30 ° of balanced helix angle.

In fig. 2 c, outer housing 36 is shown pass through coupling collar 48 and is bound to middle cover 46.These coupling collars are optional, and All unnecessary employing in any specific elastic force hose design.But, when employed, coupling collar 48 can be preferably by cover 36 Hes 46 are locked in intermediary position together.And, the coupling collar similar with coupling collar 38 can be used for reference to elastic tube 44 to middle cover 46, If necessary.The width of these coupling collars can relative narrowness so that elastic hose 44 can longitudinally freely stretch.Due to bullet Property pipe 44 can stretch on radially and longitudinally, coupling collar 38 and 48 can be made up of elastomeric adhesive, so that coupling collar can be with Elastic tube to stretch.In alternate design, coupling collar 38 and 48 may include the elastomeric ring in its surfaces externally and internally with binding agent. These binding agents on elastomeric ring surfaces externally and internally need not to be identical it is possible to be tailored the table being will adhere to reference to it Face.

In figures 3 a and 3b it is seen that resilientiy stretchable stretching flexible pipe 50 (elastic force flexible pipe), it includes inlet outlet connector 22nd, interior elastic tube 44, stretchable reinforcement outer housing 36, Outlet connector 28 and one or more wear ring 39, wear ring 39 Do not worn and torn by outer surface such as ground for outside protective covers 36, and/or other functions, control flexible pipe for example described here 50 contraction.Connector end 22 and 28 and outer housing 36 can be with essentially identical seen in elastic force flexible pipe 30 and 40 before.Interior Elastic tube 44 can be configured to similar to elastic tube in other seen in this patent, but is shown in which as no projection or calmodulin binding domain CaM Pure tubulose.Wear ring 39 may include the polymer ring of the outer surface being fixedly coupled to outer housing 36.Constitute the polymer of ring 39 Material can be by hard or flexible polymer manufacture to provide abrasion protection.If wear ring 39 includes elastomeric polymer, then ring 39 can be Stretch and contracted diameter with outer housing 36 when flexible pipe 50 is stretched or relaxes.According to harder polymer, such as polypropylene, can adopt With relatively thin coating (thin radial thickness) and/or scattered thicker part so that ring 39 is able to during stretching, extension and retraction Flexing.

Fig. 3 A illustrates to be in the elastic force flexible pipe 50 of relaxed state, and Fig. 3 B illustrates to be in pressure-bearing and the elastic force of extended configuration is soft Pipe 50.Interior elastic tube 34 is inserted in hollow braiding outer housing 36.Inlet outlet connector 22 and Outlet connector 28 are fixedly connected Opposite end to interior elastic tube 34 and outer housing 36.Inlet outlet connector 22 is designed to connect to source of pressurised fluid or compressed gas Source, and then fluid (liquid or gas) is delivered to the inner passage 35 of elastic tube 34.Elastic tube 44 may include some elasticity Any one of material or several, such as latex rubber, thermoplastic polyurethane, synthetic rubber, thermo-setting elastomer, thermoplasticity Elastomeric material and other elastomeric materials.Outer housing 36 can be identical with discuss before this, and may include high intensity braided tube, its energy Enough it is folded into radial direction fold, to provide big spread length-retraction length ratio.Wear ring 39 may include wear-resistant elastomeric or other Abrasion-resistant polymers, it can be bound to the outer surface of cover 36 on the outer ridges 36r of retraction outer housing.

Wear ring 39 can provide dimensional stability for flexible pipe 50, and (for example, it tend to when pressurizeing again and again and reducing pressure If the pattern length of wear ring 39 reduces pressure the length reaching more than flexible pipe 50 in the case of not having wear ring, then the combination of ring Length can limit the refraction capability of flexible pipe, and when flexible pipe 50 is in its retraction length, and the outer surface of wear ring can be Complete barrier is provided between the outer housing 36 of flexible pipe 50 and surrounding) so that outer housing 36 recovers to identical retracted configuration.When soft Pipe stretch when, wear ring 39 from the surface of outer housing 36 outwardly, with outside protective covers 36 be not subject to for example lido deck, track, The abrasion on the surface of footpath etc..Outlet connector 28 is designed to transmit fluid (liquid or gas) from inner passage 35 There is provided other devices limiting to external nozzles or to the flow of fluid through flexible pipe 50.Outlet connector 28 connects to interior elasticity Pipe 34 and may be designed as connecting various nozzles or applicator connects and sets with outer housing 36 in one end relative with inlet outlet connector 22 Standby.Outlet connector 28 may be designed as, with current limliting ridge 29, flowing out flexible pipe 50 to limit fluid (gas or liquid), and helping Help and set up pressure in elastic tube 34 to extend flexible pipe 50 in case using.

In figure 3b, note when elastic force flexible pipe 50 is retracted and when stretching, wear ring 39 is all from cover 36 outwardly.This Provide the first contact with most of flat surfaces for the wear ring, thus the softer yarn that outside protective covers 36 are comprised.Preferably Ground, the natural outer diameter D 1 of optional elastic tube 44, so that the inside of its gentle ground support housings 36 when retracting.This makes to manage 44 have space to slide in outer housing 36, provide internal support for outer housing 36 simultaneously.This makes the outside of outer housing 36 be able to There is during retraction relatively coherent cylinder form.Wear ring 39 tends to the outer ridges for outer housing 36 when retracting to be provided Support, to maintain diameter D3, diameter D3 is noticeably greater than the operation diameter D4 (see Fig. 3 B) of elastic force flexible pipe 50.The big I of diameter D4 Longitudinal pulling force according to acting on elastic force flexible pipe has much and changes.When flexible pipe 50 is stretched, the outer diameter D 4 of outer housing 36 diminishes, When this pulling force is released, elastic force flexible pipe 50 tends to diametrically increasing and recovering to diameter D4.If ring 39 is made up of elastomeric material, So ring 39 also will tend to being elastic recovery to it from its less compression diameter (see Fig. 3 B) and larger deposit diameter (see Fig. 3 A). This elasticity of ring 39 expands outwardly and has assisted in ensuring that the folding of outer housing 36 is controlled, thus all can fit when each flexible pipe is retracted Local formation identical pleated structure.Finally, reader should be appreciated that disclosed lubricant 37 (film, layer or painting in this patent Layer), ridge 33, adhesive tape 38 and other structures can be combined and with adopting together with elastic force flexible pipe 50.

The outer housing 36 of fold also serves as stretch cord cover, so that the elastic threads of the inside are stretched to exceedes its original length 6 times of degree.In Fig. 4 A-B, it can be seen that the elastic-type bolt of inventor's development, for fastening in travelling or fixing object. Before the braiding development of longitudinal fold, stretch cord is restricted to about 2X (2 times of its retraction length).Now with longitudinal fold Braiding, for elastic-type bolt, the expansion of 6X or bigger is all possible.This makes using the longitudinal fold technology manufacture disclosing , one foot of long elastic threads is stretchable to up to 6 feet to fasten object, such as stretch cord.Can in this kind of embodiment Using the inner elastomeric core of each type, Fig. 4 A shows the flexible core being provided with elastic hose 34, and Fig. 4 B shows by solid The flexible core that elastic threads 44 provide.In alternate design, such as the routine in the manufacture of elastic-type rope, solid elastic rope 44 can be by multiple Less elastic threads replace.

It is seen that stretch cord 60 and 63 adopts the cover 36 of fold to obtain high stretching, extension-retraction length ratio in Fig. 4 A-B. Stretch cord 60 includes the elastic tube 34 discussing before and fold braiding cover 36.Elastic tube 34 and braiding cover 36 are all that one end attaches to Stretch cord hook end 62, the other end attaches to similar hook end.Rib 33 and lubricant 37 are optional.Stretch cord 63 includes it The fold braiding cover 36 of front discussion and solid core elastic webbing 64.Stretch cord hook end 62 attaches to the one of braiding cover 36 and elastic webbing 64 End, the second hook end (not shown) similar to hook end 62 attaches to the other end of braiding cover 36 and elastic webbing 64.

It is seen that two stretch cords 60 and 63 in Fig. 4 A-B, include hook end 62, fold outer housing 36 respectively and include bullet Property flexible pipe 34 or the flexible core of solid core 64.Visible stretch cord 60 includes the hose segment of resilientiy stretchable flexible pipe 30 in Figure 4 A (see Figure 1A-B), wherein hose end 22 and 28 are replaced by elastic force end 62.For the function operation of stretch cord 60, rib 33, Lubricant 37 and coupling collar 38 are all optional.Fold in braiding cover 36 using making outer housing 36 be had substantially more Big retraction ratio, compared to the braiding stretch cord cover of prior art.Using the fold outer housing of similar cover 36, stretch cord can have six Stretching, extension than one is than (the 600% of original length).

In Fig. 4 B, stretch cord 63 closely approximates stretch cord 60 in addition to using solid core elastic cord (elastic) 64. Although solid core elastic cord is used for stretch cord, more generally, multiply elastic cord is woven together outer housing and is used together to provide more Reliable stretch cord.Because single cord 64 is easier to compared to the typical multiply elastic force wire rope core that may include the longitudinal elastic cord of multiply Draw, here illustrates single cord 64 in figure 4b.Reader should be appreciated that the identical of the stretch cord for manufacturing single rope fold cover Braiding process can be used for manufacturing multiply elasticity stretch cord.End 62 can be identical at the two ends of stretch cord, or for spy Determine purpose and change.The elastic force end of multiple species and type is found in prior art, the bullet of substantially any species or type Power end can be attached to the stretch cord of this fold cover type and be used together.

In Fig. 4 A-B, ridge 36r of fold by thermal finalization to outer housing 36 so that it tends to shape when retracting Become annular fold as depicted.The shape of setting fold contributes to the steady running of fold braiding cover 36.Recessed in fold 36v and/or ridge 36r are not stable in the embodiment on cover 36, and fold cover may have bigger risk to lose its rule Then shape and cannot suitably retracting.There is several methods that and can be used for consolidating fold, for example：1) polymeric material is bound to cover The fiber at ridge 36r on 36 and/or yarn 36a-b (see Fig. 3 A-B), 2) use high temperature air thermal finalization fiber and/or yarn Line 36a-b, 3) naked light thermal finalization fiber and/or yarn 36a-b are used, 4) use hot surface (ferrum) thermal finalization fiber and/or yarn 36a-b, 5) use radiant heat (infrared ray, light etc.) thermal finalization fiber and/or yarn 36a-b, 6) with steam thermal finalization fiber and/ Or yarn 36a-b, and 7) with other relatively infrequently heating means thermal finalization fibers and/or yarn 36a-b.Can be to single cover Adopt several in these fixing methods together.For example, high temperature air together can adopt with infrared heater to realize expecting Fold sizing.Similar, high temperature air can be used for fold of shaping, then in ridge coated polymer coating to enter one The firm fold of step is in case life-time service.

In fig. 5, elastic hose 70 can be essentially identical with the extensible retractable hose 30 being previously seen, but has bag Include the thermal finalization of the multiple melt surface parts 77 in ridge 36r of cover 36.In fig. 5, fold outer housing 36 is as discussed Ground (on the right side of Fig. 5 A), is in during being converted into thermal finalization fold outer housing 76 (on the left of Fig. 5 A).From multi-combustor spray The naked light 71 of mouth 72 is used for for the annular fold part 77 illustrating thermal finalization and forming thermal finalization braiding cover in braiding cover 36 76.Burner nozzle 72 can be placed with entirely around cover 36 (only illustrating the burner nozzle 72 of top and bottom), thus hot Amount is averaged in the whole surface of ridge 36r being distributed on cover 36.In this example, annular fold braiding cover 36 is from the right side It is moved to the left through burner nozzle 72, stretches slightly from its fully retracted position along with cover 36, so that ridge 36r is not Forcefully it is forced to together by elastic tube 34.Burner nozzle 72 can produce flame 71 using various fuel, such as propane, Butane, methane, ethanol, methanol and other gases and the liquid fuel that stable flame 71 can be produced.Sudden and violent with braiding cover 36 The surface of dew, through burner nozzle 72 and flame 71, forms multiple melt surface parts 77.Flame can by those expose outer Surface is heated to the fusing point of the material (that is, polypropylene, nylon, polyester, polyethylene etc.) constituting cover 36, and yarn 36a-b is melted Change to together with forming part 77 on thermal finalization fold fabric 76.

When burner nozzle 72 by its flame 71 against fold cover 36 whole outer surface, strong from thermal-flame 71 Heat, can just melt the outer surface of ridge 36r in no time and form multiple melt surfaces on the expose portion of yarn 36a-b 77.During this fusion process, the interior section of fold braiding cover 36 can keep relative low temperature compared to ridge 36r.? During fusion process, braiding cover 36 can compress (being fully retracted) position extending longitudinally slightly completely from it, so that ridge 36r will not substantially touch the ridge of their either side next-door neighbours.By cover 36 extending longitudinally slightly by this way, flame 71 Tend to quickly cooling down when they are through the close clearance of (between ridge 36r) between fold, and tend to not providing the heat of abundance to incite somebody to action The side of the fold that fold may slightly contact with each other combines.

Each in yarn 36a-b may include many individually silks, and it may be twisted together or not twist with the fingers together.Fig. 5 A This fusing of middle yarn 36a-b and part combination can occur mainly between these the less silks in each yarn 36a-b.By This, using correct heating amount, their yarn filaments can be melted together in yarn 36a-b for the exposed surface of yarn 36a-b Surface on form multiple crust shells 77 at ridge 36r.These surface shells or melting range 77 can be formed at specific yarn It is possible to strong combine or be not bound to by force the surface shell 77 be adjacent on another yarn on line.Between neighboar lists face-piece This weak binding makes braiding cover 76 be maintained relative flexibility, even if the outer surface of ridge is seriously melted.Yarn This fusing on line surface avoids yarn 36a-b and slides too far from their original fold position during use, and thus Even if providing the stable fold fabric remaining to keep its shape after a large amount of use.

In figure 5b it is seen that elastic hose 70 pressurized and extend thus with cover 76 and elastic tube 34 be used together, And assume cylindrical tube-shape.Flexible pipe 70 includes same flexible pipe 30 essentially identical configuration, but also defines multiple melt portions 77, multiple melt portions 77 form the length direction evenly spaced annular ring along flexible pipe 70.Melt portions 77 tend to stoping to be used Remaining gauffer cover 76 forms perfectly round cylindricality, and tends to extensive when flexible pipe 70 is depressurized and recovers to its longitudinal retracted position Again to its gauffer ridge location to store.If the braiding cover 76 with the ridge part 77 of fusing be loaded on stretch cord 60 or On 63 (replace cover 36), melt portions 77 can play the effect essentially identical in elastic hose 70 with it, and tends to so that ridge Shape thing 36r stretches in cover 76 and recovers to its original retracted position afterwards to use.

Binding agent

Reader should understand from discussion before this, to combine the elastic force disclosing using bonding agent, integrated structure and binding agent The specific components of pressure hose, contribute to suitable operation and the ruggedness of flexible pipe.However, the composition of these bond materials and knot Positioning, molding and the application of closing structure can be greatly.For example, for the combination knot with reference to interior elastic tube 34 to outer housing 36 Structure (coupling collar 38) can assume the form of the junction belt following spirality path, the small fragment (short strip) positioning along flexible pipe interval Form or the form of point, or even bonding pad or pad any pattern (not shown, see the combination being assumed to be segmentation Ring 38 and 48).During manufacture, these integrated structures and/or binding agent can be first coated with interior elastic tube or outer housing and/ Or other assemblies, to form the structure of such as coupling collar 38, coupling collar 48, pad (not shown), binding site (not shown).Knot Condensation material also can apply before, during or after building the specific part of Telescopic flexible pipe.Additionally, integrated structure also can be non- Be coated on interior elastic tube and/or outer housing under tacky state, and then after, after assembly, be activated with by these assemblies Combine to complete Telescopic flexible pipe.Bonding agent itself (plus any supporting construction) may include very diversified material Material, includes but are not limited to, adhesive, polymer adhesive, ultraviolet photo-curing cementing agent, hot setting adhesive, chemosetting Adhesive, flexible thermopolymer, soft elastomeric, foamed polymer and/or elastomer etc..Finally, integrated structure and bonding agent May include the hose construction itself of reality, in this case, integrated structure that need not be extra or binding agent (for example, linear bullet Property pipe heat and/or mechanical bond to outer housing).

Interior elastic tube construction

In Figure 1A to 3B and 5A to 5B, elastic tube 24,34 and 44 can be by the tubulose being formed for conveyance fluid or gas Elastomeric material (elastomer) make.If desired, elastic tube 34 and 44 can have and elastic tube 24 identical structure.Interior elastic tube 24th, 34,44 it is shown having outstanding elastic property so as to be elongated reach its original length 7 times under stress. The wall thickness of elastic tube 34 and 44 and diameter can change action required (stretching, extension and contracting to provide Telescopic flexible pipe according to outer housing 36 Return).The identical material that can be used by the elastic tube 24 with prior art for the elastomeric material manufacturing pipe 34 and 44, and May include some available elastomer, rubber and there is any one of other materials of elastic property or multiple at present.Bullet Property pipe 34 and 44 can use including but not limited to following material to make：Natural emulsion, synthetic latex, thermosetting plastics, thermosetting Elastomer, thermoplastic elastomer (TPE), thermoplastic polyurethane, buna etc..Using concrete elastomer specific by specific flexible pipe Purposes and its specific use environment determine.Elastomer is determined from the ratio that stretches of its natural length by the particular use of Telescopic flexible pipe Fixed.For the purposes of such as garden hose, need to stretch 300% (3X) or more.Thermal finalization polymeric material is compared to thermoplasticity Material has very big advantage, because even being stretched very long a period of time or stand higher temperature, thermal finalization polymer Material still tends to returning to and its identical shape at the beginning.Therefore, the low creep of thermal finalization plastics make disclose elasticity can Bellows is had longer useful life.Thermoplastic elastomer (TPE) tends to when being stretched and heat losing significant one Divide elasticity, and may not recover to its original retraction length.

Manufacture method-Figure 1A to 5B

We have seen that elastic biasing stretching flexible pipe 20 (Telescopic flexible pipe) of prior art in Figure 1A-B, it is available multiple Method manufactures.For example, elastic tube 24 and outer housing 26 can be separately fabricated, and then elastic tube 24 slides in cover 26, adapter 22 It is incorporated in its respective end with 28.Alternately, elastic tube 24 is separately manufactured, and outer housing 26 is compiled around elastic tube 24 Knit to form hose segment.Elastic tube 24 defines inner passage 25, enters through inlet outlet connector 22 for transmitting fluid or gas Enter and leave through Outlet connector 28, as shown in Figure 1B.Telescopic flexible pipe 20 may include current limliting ridge 29, sees outlet and connects On device 28.Because the natural length of the interior elastic tube of the natural length of outer housing 26 24 is considerably longer, outer housing 26 is collapsed in flexible pipe 20 When can be slightly compressed longitudinally, and elastic tube 24 can extend longitudinally to the length of outer housing 26 when stretching.Can be promoted using a mandrel system Enter these assembling process.

In Fig. 2A to 3B, braiding outer housing 36 and interior elastic tube 34 and 44 are used in Telescopic flexible pipe 30,40 and 50, its Can be by assemble with above-mentioned stretching flexible pipe 20 similar manner.Additive method is also possible, and wherein strengthening outer housing 36 can be direct Weave to separately made elastic tube 34.Before elastic tube 34 is pulled through the inner passage pipeline 35 of cover 36, can be by Lubricant 37 is coated on the outside of elastic tube 34 and/or the inner surface of outer housing 36.Inlet outlet connector 22 and Outlet connector 28 are right The two ends of elastic tube 34 and outer housing 36 can be connected to afterwards.Lubricant 37 is introduced and between elastic tube 34 and cover 36, reduces them Surface between friction, and provide less frictional force on elastic tube 34 and less abrasion.

In figures 3 a and 3b, wear ring 39 can be formed in the ridge of braiding outer housing 36 using multiple methods.These sides Some in method include, and spray liquid polymerses when cover 36 is retracted, and then rapid partly longitudinal stretching cover is with by these liquid Body is divided into ring, rolls outer housing 36, thermopolymer is rolled to form ring 39 on outer housing 36, by wear ring in thermopolymer bath In 39 ridge being expressed into outer housing 36, coat abrasion-resistant polymers and then incite somebody to action in the entirely outside of cover when cover 36 is fully retracted It is cut to ring 39 between ridge, etc..

Lubricant 37 can be the mixture of fluid lubricant, kollag and/or solid and fluid lubricant.Solid Polymer powder or globule also are used as kollag.The example of some lubricants includes but is not limited to, oil, paraffin, wax Mixture, other flexible polymers, politef, graphite, solid polymer coating, elastomer coating, etc..These lubricants 37 can be coated on the inside of outer housing 36, on the fiber of outer housing 36 and/or interior elastic tube 24,34,44 outside.Because of outer housing Porous property, fluid lubricant can be applied across outer housing 36 to apply the inner surface of cover 36 from outside.The solid profit that can be melted Lubrication prescription (image-stone wax) also can be applied to the outside of outer housing 36 and be allowed to pass through the fabric of cover 36 and/or with many with capillarity The method of kind (for example, applied compression gas) is forced past cover 36 to its inner surface.

In the lubricant tested, candle wax is put up the best performance.The soft solid property of paraffin is between two surfaces Provide smooth lubrication, and will not be flushed away in use or when not using or flow away.Paraffin is when being heated to its fusing point Also easily in the fabric of inhalation mask 36.Paraffin and other lubricious polymeric things, even if after hundreds of flexible pipes stretch circulation also Can continue to provide protection.Paraffin may also be combined with other compositions or additive, so that paraffin has various other properties.By adding Plus added ingredient or additive, paraffin or flexible polymer can become with viscosity and/or gluing, thus it is when flexible pipe is retracted, Can shift together with interior elastic tube and/or outer housing, and help for inner flexible tube to be maintained at ad-hoc location simultaneously.These have viscosity And/or the polymer of gluing can be used as weak binding agent, provide the weak binding between elastic tube and outer housing, to maintain during operation Its relative position.These sticking and/or gluing polymer of tool can be customized to easy when being applied in little constant force In slide (the similar thick lubricant of effect), and it is similar to the strong quick power of binding agent effect opposing simultaneously.Other additives can It is used for improving the fusion temperature (weather of more warm) of paraffin or flexible polymer, and be used in other cases reducing fusing Temperature (colder weather).The solid polymer of other lubrications may include the polymer of the fiber that can be incorporated in outer housing 36, and Form the low friction contact interface that the outer surface of same elastic tube (i.e. elastic tube 24,34 and 44) has a common boundary.Lubricant may additionally include It is coated on the kollag on the yarn constituting outer housing 36 or fiber before braiding or weaving outer housing 36.

Fold cover 36 and 76 can manufacture in the following manner, uses circular knitting machine or other similar machine braiding circle to compile first Knit pipe, then by pleating for the braided tube annular fold for having repetition and by thermal finalization, polymer-coated and/or utilize other Shape keeping method is fixed to the crimp shape showing.Once fold cover 36 and 76 has the shape of sizing, such as Fig. 2A, 3A, 4A With shown in 5A, can be by various elastomeric materials insertion cover and attach to its suitable terminal adapter to form Telescopic flexible pipe (i.e. 30, 40 and 70) or stretch cord (i.e. 60 and 63).A kind of specific process of thermal finalization cover 36 illustrates in fig. 5, is wherein burnt with naked light Outer ridges 36r with part fusing yarn 36a-b and forms fold cover 76.Melt portions 77 provide for relative to each other Keep yarn 36a-b means in position, and provide in use by the recovery afterwards of stretching (see Fig. 5 B) repeatedly for yarn Strong ability to its original crimp shape as Fig. 5 A.

The manufacture of fold outer housing 76 as shown in figures 5 a-b can be realized in several ways.A kind of method illustrates in fig. 5, Wherein similar to extensible retractable hose 30 flexible pipe completing passes through the combustor chamber including burner nozzle 72, so that Obtain the outer ridge surface 36r of flame 71 contact cover 36, heat these surfaces to the fusing point of yarn 36a-b.If hose end is by moulding Material is made and then can be placed protective cover in hose end 22 and 28, and so when flexible pipe, through flame 71 and multiple melt portions 77 produce When in ridge 36r, these ends will not be damaged.Manufacture fold outer housing 76 second method can be, only by fold cover 36 It is carried through the combustor chamber including burner nozzle 72, manufacture melt portions 77 with flame 71.The above method all may be used Burner nozzle 72 is substituted as thermal source using high-temperature hot air and/or pharoid (infrared and visible light heater).

In test, very high temperature heating gun, produces to manufacture more than the air hot enough of 1400 degrees Fahrenheits and radiant heat Melt portions 77 on the fold cover similar to cover 36, itself and the melt portions 77 being manufactured by propane flame almost cannot be differentiated 's.In some designs, the outside of quick heating mantles 36 is not heated and is led to the recessed of cover for suitably melt portions 77 It is important that part is shunk.Slower heating may result in the superheated of the below portion to fold cover 36, and it can tend to leading Cause the notable shrink of yarn 36a-b (and cover 36), also can make the fold fabric hardening being formed.Therefore, part can be rapidly completed The shrink to avoid fiber 36a-b for 77 heating.Hot-air and the gas of burning, pass through the little Close stack of cover 36 at it Cool down rapidly when between fiber, if but heat is applied in more than half second, and heat begins in deep cover 36, and starts to lead to fiber Interior section start shrink.When this internal shrink occurs, thing does not support outer ridge entirely to cover 36 and tend to Diametrically shrink.If the shrink of this cover 36 is not accounted in final products, then this shrink can lead to problem.Preferable Ground, only outer ridge is sufficiently heated so that fiber shrinks and/or melts, and so following fiber can support outer ridge And help stop the fiber of there to shrink.For the gauffer fabric of about 0.80 inch of external diameter, the stopping of hot-air or gas Stay the time should be maintained at less than one second to avoid significantly shrinking.It is desirable that for most of nylon and polyester fiber, half second Can be used to following heat time heating time for shrink to be maintained at minimum.However, temperature should sufficiently high with here half second or shorter Interior fusing outer ridge form melt portions 77 during heating.This can need relatively high temperature, greater than about 1500 degrees Fahrenheits. Therefore, in many cases, the heating of melt portions 77 should have the time deeply to weave cover 36 in hot gas, flame or radiant heat Interior and be accomplished very quickly before causing Excessive shrinkage.

In Fig. 5 A-B, melt portions 77 have, due to its hard property, the spiral hindering in response to those position fibers The ability of the usual change of the stretching force at angle.Therefore, when measuring the helical angle of fiber 36a-b it should by fiber 36a-b not Measure between the ring that melt portions 77 at the fiber destruction being melted and obstruction are formed.

Operating instruction-Figure 1A to 3B

In Figure 1A-B, the Telescopic flexible pipe 20 of prior art is visible to have interior elastic tube 24, its have the wall of relative thick with Intensity is provided to resist the hydraulic pressure and opposing frictional force with outer housing 26.The outer diameter D 1 of elastic tube 24 is about the diameter D2's of outer housing 26 Half, thus significantly intrinsic pressure until being applied with, elastic tube 24 just starts significantly to extrude the inner surface of outer housing 26.Elasticity The less diameter D1 of pipe 24 also makes Telescopic flexible pipe 20 be able to before being expanded to diameter D2 (inner surface of cover 26, see Figure 1B) Significantly stretch in longitudinal direction.This avoids significant frictional force and is formed between elastic tube 24 and outer housing 26, until scalable After flexible pipe 20 part stretches.Constriction 29 produces back pressure to increase intrinsic pressure and to make flexible pipe full extension in elastic tube 24.Can The nozzle adapter (not shown) being attached to Outlet connector 28 is provided that extra back pressure so that flexible pipe 20 stretches.With elasticity Pressure in pipe 24 increases, and pipe 24 extrudes the folded portion of outer housing 26 and flexible pipe continues vertical expansion.Further with pressure Increase, elastic tube 24 extrudes the inner surface of outer housing 26, this can cause outer housing 26 to form folding line and in cover 26 not in elastic tube 24 Surface on slide and be not up to its complete length with the case of reaching its complete length.The slip on this surface produces abrasion simultaneously Decrease the service life of flexible pipe.When hydraulic pressure is removed, the elastic biasing tension force in elastic tube 24 causes Telescopic flexible pipe 20 Retract and discharge water from elastic tube 24.

Before we continue with elastic force flexible pipe 30,40 and 50, please look back in presents and be labeled as " term definition " Part, to know the definition of some particular term used in description elastic force flexible pipe.In Fig. 2A-B, Telescopic flexible pipe 30 can See and be respectively at its collapsed state and extended configuration.In its collapsed state, as shown in Figure 2 A, elastic tube 34 is substantially lax, adjoint Cover 36 to fold and around pipe 34 longitudinal compression.Telescopic flexible pipe can be manufactured thus when outer housing 36 is in its retracted mode, becoming In folding and compress the annular ridge 36r that (pleating) is equispaced and adjoining dimensions along its length.For example, outer housing 36 is become Shape is desired fold style, then it is carried out with hot pressing and (or is retouched with here with being fixed to crimp shape in yarn fibers The additive method for obtaining described fold style stated combines, or as an alternative, such as design inner flexible tube make its Retracted mode has certain external diameter, the lower recess in the crimp shape that its gentle ground support housings is presented).In extended state, As shown in Figure 2 B, outer housing 36 and interior elastic tube 34 are shown as being stretched to the length corresponding with Telescopic flexible pipe 30 by user Degree, this length exceeds its " full extension length " (see definitional part).The property of outer housing 36 can make it have such ability, The annular ridge of Close stack, equispaced and adjoining dimensions substantially can be fifty-fifty folded into when being slightly compressed longitudinally (retraction) Shape thing, thus provide aesthetic more satisfactory relative smooth smooth outer surface.The some parts of yarn 36a-b tend to Interior folding forms lower recess 36v, and some parts tend to outer ridge 36r of folded-out formation.Design suitable open circles braiding Thing can form evenly spaced point on outer housing 36, and these points naturally tend towards in being folded in or out in order, can by this outer housing 36 It is designed to uniformly collapse without extra structure with the waveform pattern around elastic tube 34 and 44.As shown in figures 3 a-b Add wear ring 39, outer covering on can be forced further during retraction, to assume this fold or wave-like.

In Fig. 2A-B, it is introduced in adapter 22 and inner passage 35 with hydraulic pressure, elastic tube 34 starts longitudinal direction and footpath To expansion.The inside of outer housing 36 is easily deformed and starts to assume cylinder.Increase with pressure, it is outer that elastic tube 34 starts extruding Cover 36, and so that outer housing 36 is straightened as cylindrical tube.When elastic tube 34 is forced to resist outer housing 36, lubricant layer 37 helps subtract The frictional force of elastic tube 34 and scratch (chaffing) on little outer housing 36.Once interior elastic tube 34 and 44 extrudes outer housing 36 for circle Cylindricality, elastic tube 34 and outer housing 36 subsequently can expand when elastic force flexible pipe 30,40,50 continues the extending longitudinally with intrinsic pressure increase ?.Before elastic force flexible pipe reaches its spread length for a long time, outer housing 36 just can be smooth-out and shakeout and lean against interior elastic tube 34 On.With the applying of bigger pressure, continue longitudinally elongated, elastic force flexible pipe together with 44 with interior elastic tube 34 respectively with outer housing 36 30th, 40,50 continuation are elongated.Once realizing between pipe 34 and outer housing 36 completely attaching to, the stretching further of elastic tube 34 and outer housing 36 Exhibition produces pipe 34 and slides with respect to the very little of outer housing 36.But, lubricant 37 can provide low-frictional force between pipe 34 and cover 36 Surface interface, so that they are relative to each other slided.Lubricant 37 can help sliding with respect to cover 36 in elastic tube 34 Reduce the abrasion of elastic tube 34 by reducing the stress on pipe 34 when dynamic.The kollag of such as paraffin is particularly good in subtracting Frictional force between less wear and also reduction elastic tube 34 and braiding outer housing 36.During life-time service, paraffin tends to remain in cover In 36, and in test, mix in the fiber of cover 36 with paraffin, paraffin actually shows the effect become better and better.

In fig. 2 c, elastic force flexible pipe 40 can be with the substantially similar way operating of scalable elastic force flexible pipe 30 operation.In The increase of cover 46 can change " spread length " of elastic force flexible pipe 40 compared to elastic force flexible pipe 30, but will be similar with elastic force flexible pipe 30 Ground is expanded together with elastic tube 44 and is shunk.Due to being provided with add similar with outer housing 36 between outer housing 36 and elastic tube 44 Persistent erection of the penis cover 46, thus here is not using lubricant 37 (film, layer or coating).Middle cover 46 can provide softer contact for elastic tube 44 Surface is to reduce friction.Middle cover 46 also can before assembly pre-preg lubricant to provide extra abrasion protection for elastic tube.Plus Strong cover 36 is expanded together with 46 are designed to and is shunk, thus outside during expansion and contraction and when fully expanded Cover 36 can cover in support housings.A kind of mode doing so has the reinforcement of essentially identical yarn spirals for providing when stretching Cover 36 and 46, so they be proportional to one another ground radial dilatation and in the whole expansion of flexible pipe be provide each other with intrinsic pressure support. Certainly, the suitable stretching, extension diameter of cover 36 and 46 can be used for so that they are supported during use each other (when stretching Middle cover 46 be close to adapt in outer housing 36).Outer housing 36 is also designed to interact in such a way with middle cover 46, (for example, led to the annular ridge 36r supporting outer housing 36 to form uniform intervals and adjoining dimensions along its length when flexible pipe is retracted Cross in the crimp shape that should present when flexible pipe is retracted as under the position of recess connect outer housing 36 to middle cover 46), and be Elastic force flexible pipe 40 provides visually satisfactory outer surface.

In Fig. 3 A-B, elastic force flexible pipe 50 can be with the substantially similar way fortune with scalable elastic force flexible pipe 30 and 40 operation Turn, except several differences.Adding of multiple wear rings 39 helps stretch in elastic force flexible pipe 50 and stablizes hose cover 36 when retracting Fold and launch (fold and flatten).Therefore, wear ring 39 also tends to keep cover 36 to be outwards approximately in diameter D3 when retracting, And deform when flexible pipe 50 is subject to internal pressurization.This makes flexible pipe 50 stretch, and outer housing 36 launches, and the diameter of cover 36 reduces.If resistance to Bull ring 39 is made up of elastic or pliable and tough material, and the diameter of ring 39 can be pulled to the diameter of considerably smaller than diameter D3 by outer housing 36. This pulling being acted on ring 39 by cover 36, can be by an equal and reverse force compensating, and this power tends to lifting ring 39 paramount In the outer surface of cover 36 and help protective cover 36 to be not damaged by.In alternate design, cover 36 and/or elastic tube 44 also can be in assemblings Front pre-preg lubricant is to provide extra abrasion protection for elastic tube.Lubricant also more easily can be slided by allowing outer housing Become desired shape, and by way of making various assemblies and being not easy to cause outer housing to be collapsed by different way with meeting inadvertently It is combined with each other, promote outer housing to be punctured into crimp shape.

In Fig. 4 A-B, stretch cord 60 and 63 to operate with standard stretch cord substantially similar way, and can have hook end 62, it makes the various places that stretch cord is attached to the vehicles be used for fastening object.Stretch cord itself, including fold cover 36 and flexible core (that is, elastic tube 34 and elastic threads 64) so as to be stretched with to be held in place by these objects.With logical Normal stretch cord is different, and the stretch cord of disclosure is stretchable to and exceedes six times of its original length, with wind firmly grasp need fixing Article.

In Fig. 5 A-B, elastic force flexible pipe 70 can be operated with scalable elastic force flexible pipe 30,40 and 50 substantially similar way, except Several differences.Even if being similar to through harsh use under the extended position shown in Fig. 5 B, hard melt portions 77 tend to so that Fold cover 70 has very strong tendency and recovers to its original fold position (see Fig. 5 A).And, melt portions 77 can help protect Yarn 36a-b is not scratched in the rough surface of similar concrete and brick.Melt portions 77 also make braiding cover 76 such as scheme Become approximately to cylinder during use shown in 5B, but melt portions 77 are still remembered its annular fold position and guaranteed Recovered to this crimp shape (see Fig. 5 A) using back cover 76.

In Fig. 5 A-B, fold cover 76 is illustrated to play as the effect of the cover for extensible and retractable hose.When applying When having added extending longitudinally power and withdrawal force, the operating of cover 76 is substantially automatic.These longitudinal power are derived from internal force or external force, and Can be provided by hose and operating characteristics, including but not limited to：Hydraulic pressure difference inside and outside elastic tube, flexible pipe, helical spring, bullet Property rope, but source inside or outside other (for example, flexible pipe user, it can provide external stretching forces by stake pipe) is alternatively soft Pipe provides and stretches or withdrawal force.Longitudinal compression/withdrawal force tends to a series of for cover 76 boil down to annular fold, in such as Fig. 5 A Shown in left side.Longitudinal stretching force (or tension force) tends to fold to pull open and longitudinally launches cover 76, as shown in Figure 5 B.In Fig. 5 A-B In, fold cover 76 is just being used in extensible regracting elastic force flexible pipe 70, and wherein compression stress is derived from interior elastic tube 34.Once being drawn Stretch, elastic tube 34 has and is slightly compressed longitudinally to the potential of its retracted position seen in Fig. 5 A so that covering 76.When hydraulic pressure is supplied to To adapter 22, combine with the current limliting adnexa (spray nozzle) attaching to out connector 28, elastic tube 34 is internal pressurized, Produce the stretching force forming tension force between end 22 and 28.This stretching force makes cover 76 stretch and also provides radially outer pressure Extruded as subcylindrical so that 76 will be covered.Tend to keeping its position during use by the ring that melt portions 77 are formed, due to one A little fibers combine together, this also can make ring for use as tending not to easily slide past hard shape each other.Therefore, When hydraulic pressure is released from flexible pipe 70, elastic tube 34 produces the net compressive force acting on fold cover 76, and melt portions 77 become In by the repetition seen in its Fig. 5 A of cover 76 compression and back a series of annular fold.

Derive and scope

Radially expandable and longitudinal telescopic outer housing is used together with interior elastic tube and significantly changes Telescopic flexible pipe The kinetics of (elastic force flexible pipe) and its property that operates.Outer housing as in this disclosure, can be fixed by forming all yarns of outer housing To for being that acute angle (yarn is both non-longitudinal and non-tangential orients) to be implemented to promote longitudinal direction and footpath with respect to the longitudinal axis of elastic force flexible pipe To stretching.

Although described above comprises many specific examples, these examples are not construed as limiting this patent or any The protection domain of Patents defined.On the contrary, described above should be recognized as describing each of the technology implementing the present invention Some in the current preferably method of aspect.For example, many alternative solids and fluid lubricant can use, and in outer housing In the embodiment being combined with interior elastic tube, many different combinations can be used for obtaining tool for specific elastic force flexible pipe The property of body.Selection for interior elastic tube and the material of outer housing is very diversified, and can using many plant natural and Synthetic polymer.And, other combinations of the many of outer housing, lubricant, interior elastic tube, associated methods are also feasible.Finally, to the greatest extent For the outer housing of elastic force flexible pipe, hollow circle braided tube is preferably structure at present to pipe, but other weavings many, woven type and Weave can be replaced use, its provide rule repetition gauffer pattern, and allow flexible pipe in extending longitudinally radially contracted and Radial dilatation when longitudinally retracting.

Therefore, protection scope of the present invention is not understood as limited to above-mentioned example, and should be determined by claims.

Claims

1. a kind of pipe, including the fiber of multiple left-handed fibers and dextrorotation, it is woven to form the passage in described pipe, and energy Enough longitudinally extend to spread length in response to extending longitudinally power from reduction length, wherein：

A) described pipe can when being contracted to its reduction length from its spread length boil down to multiple annular fold, each annular pleat Wrinkle includes annular ridge and annular recessed and have be more than at described annular ridge described annular under recess internal diameter； And

B) for each annular fold, carry out the annular ridge of annular fold since then recessed with the annular carrying out annular fold since then all Using the longitudinal axis of the passage in described pipe as centered around；

Wherein, described pipe can the fiber based on the plurality of left-handed fiber and dextrorotation be including the plurality of ring by thermal finalization The configuration of shape fold is compressed into the plurality of annular fold；And

Wherein, each annular ridge from the plurality of annular corrugations include melting multiple in the configuration of described fold Region.

2. pipe according to claim 1, wherein, the fiber of the plurality of left-handed fiber and dextrorotation is in pressure in described pipe Contracting length time periods are scheduled on the first helical angle between about 5 to 20 °.

3. pipe according to claim 2, wherein, the fiber of the plurality of left-handed fiber and dextrorotation is in described pipe to be stretched Exhibition length time periods conclude a contract or treaty the second helical angle for 30 °.

4. pipe according to claim 1, wherein, spread length is at least four times in reduction length.

5. pipe according to claim 1, wherein, described pipe includes the middle cover in the passage being placed in described pipe.

6. pipe according to claim 1, wherein, described pipe can be for each annular from the plurality of annular fold Annular ridge based on the combined so far annular fold of polymeric material for fold and be compressed into the plurality of annular fold.

7. pipe according to claim 1, wherein, from the fiber of the plurality of left-handed fiber and the plurality of dextrorotation Fiber is yarn.

8. a kind of pipe, including braided fabric, described braided fabric includes being formed to define the many of the circular knit of inner passage Individual dextrorotation and left-handed fiber, wherein said braided fabric can：

A) in response to extending longitudinally power from reduction length extending longitudinally to spread length；

B) it is compressed to reduction length in response to longitudinal compressing force from spread length；With

C) form the annular fold of multiple repetitions when being in reduction length；

Wherein, described braided fabric can based on by thermal finalization be including the plurality of annular fold configuration formed the plurality of The annular fold repeating；And

Wherein, each fold from the annular fold of the plurality of repetition includes annular ridge, wherein said braided tube institute Including fiber fusion at the annular ridge from the annular fold of the plurality of repetition.

9. pipe according to claim 8, wherein, described braided fabric can be bound to described braiding based on polymeric material Fabric forms the annular fold of the plurality of repetition.

10. braided tube according to claim 9, wherein：

A) each the annular fold being derived from the annular fold of the plurality of repetition includes annular ridge；And

B) described polymeric material is bound to the described annular ridge from the plurality of annular fold.

A kind of 11. pipes, including：

A) tubular cover, tubular cover includes the fiber of multiple left-handed fibers and dextrorotation, and these fibers are woven to form described pipe Passage in shape cover, and can longitudinally extend to spread length in response to extending longitudinally power from reduction length；

B) fold formed instrument, for when described jacket tube is contracted to reduction length from spread length along described jacket tube Length formed multiple annular folds, wherein：

I) the plurality of annular fold in each annular fold include annular ridge and annular recessed and have its annular It is more than the internal diameter of recess under its annular at ridge；And

Ii) for each annular fold, carry out the annular ridge of annular fold since then recessed with the annular carrying out annular fold since then All using the longitudinal axis of the passage in described tubular cover as centered around；

Wherein, described fold forms the fiber that instrument is the plurality of left-handed fiber and dextrorotation, the plurality of left-handed fiber With the fiber of dextrorotation by thermal finalization be including the plurality of annular fold configuration；And

Wherein, the fiber of the plurality of left-handed fiber and the plurality of dextrorotation includes melt portions.

12. pipes according to claim 11, wherein, described fold formation tool kit includes and is bound to the plurality of annular fold Polymeric material.

13. pipes according to claim 12, wherein, described polymeric material includes being bound to from the plurality of annular pleat The polymeric material of the annular ridge of wrinkle.

14. pipes according to claim 7, wherein, the plurality of region melted in the configuration of described fold is abundant Fusing was so that yarn resistance was slided each other.

15. pipes according to claim 7, wherein：

A) described yarn includes each yarn, and each yarn all includes multiple silks；With

B) combine with melting the thread segment in the plurality of region of the configuration of described fold, wherein combine and be predominantly located at respectively Between silk in individual yarn.

A kind of 16. pipes, including the fiber of multiple left-handed fibers and dextrorotation, it is woven to form the passage in described pipe, and Spread length can longitudinally be extended in response to extending longitudinally power from reduction length, wherein：

Wherein, described pipe can be based on polymeric material knot for each the annular fold from the plurality of annular fold It is bonded to the annular ridge of this annular fold and be compressed into the plurality of annular fold.

A kind of 17. pipes, including braided fabric, described braided fabric includes being formed to define the many of the circular knit of inner passage The fiber of individual dextrorotation and left-handed fiber, wherein said braided fabric can：

Wherein, described braided fabric can form the plurality of repetition based on the polymeric material being incorporated into described braided fabric Annular fold.

18. braided tube according to claim 17, wherein：

A) each the annular fold being derived from the annular fold of the plurality of repetition includes annular ridge；With

B) polymeric material is attached to the annular ridge from the plurality of annular fold.

A kind of 19. pipes, including：

A) tubular cover, it includes the fiber of multiple left-handed fibers and dextrorotation, and these fibers are woven to form described tubular cover Interior passage, and longitudinally can extend to spread length in response to extending longitudinally power from reduction length,

Wherein, described fold forms tool kit and includes the polymeric material being bound to the plurality of annular fold.

20. pipes according to claim 19, wherein, described polymeric material includes being bound to the plurality of annular fold The polymeric material of annular ridge.